[FFmpeg-user] -istoffset and -vcodec copy

Carl Eugen Hoyos cehoyos at ag.or.at
Mon Nov 28 11:16:51 CET 2011

Jonathan Addleman <jono <at> redowl.ca> writes:

> >>  With the 'veryslow' preset, the results are abysmal - nasty artifacts
> >>  everywhere. Utterly unusable.
> >
> > You have to either define a low constant quantiser or a target bitrate.
> Even with -qscale 1, it looked awful. (I assume that's what you mean?)

(Command line and complete, uncut output missing.)
-qscale 2 works fine with -vcodec mpeg2video and -vcodec mpeg4, I suspect you
have to use a x264 option for -vcodec libx264.

Carl Eugen

More information about the ffmpeg-user mailing list